Cisco Gigabit Switch Router 12008 Installation And Configuration Manual page 158

Connecting Route Processor Cables
Table 3-3
1
Pin
8
18
19
2
22–39
1, 20, 21, 40
1. Any pins not indicated are not used.
2. Tx_CLK and Rx_CLK are provided by the external transceiver.
Table 3-4
Pin
1
2
3
4
5
6
7
8
Figure 3-10 shows the pin orientation of the female RJ-45 receptacle on the Ethernet port.
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Cisco 12008 Gigabit Switch Router Installation and Configuration Guide
Ethernet MII Pinout (Continued)
In Out Input/Output
Yes – –
Yes – –
Yes – –
– – Yes
– – –
– – –
Ethernet RJ-45 Pinout
Signal
TX+
TX–
RX+
Termination Network
Termination Network
RX–
Termination Network
Termination Network
Description
Receive Data Valid (Rx_DV)
Collision (COL)
Carrier Sense (CRS)
MII Data Input/Output (MDIO)
Common (ground)
+5.0 volts (V)